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Communication Helmet Communication Helmet manufacturers Communication Helmet for car
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Communication Helmet/Communication Helmet manufacturers/Communication Helmet for car
Equipped with productive communication helmet factory and company, Fenghuo Hongsheng is one of the leading China communication helmet manufacturers and suppliers. Welcome to contact us.
Model FHH-1 Communication Helmet is composed by helmet, communication cap and adapter cable. It is an audio terminal used in various communication cars.
Main Technical Specifications of Communication Helmet :
Operation temperature: -40?~+65?
Weight=1900g (whole set)
Transmitting impedance: (150±22.5)O(1000Hz)
Transmitting sensitivity:(-63±3)dB/Pa(200~4000Hz,1V for 0dB)
S/N=8dB
Receving impedance: (500±100)O(1000Hz)
Receving sensitivity:(98±3)dB/mW(200Hz~4000Hz,20µPa for 0dB)
Sound insulation amount of earmuffs=20dB(125Hz~8000Hz)
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